CN107620259A - Construction protection method for bridge under a kind of high-voltage line - Google Patents
Construction protection method for bridge under a kind of high-voltage line Download PDFInfo
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- CN107620259A CN107620259A CN201710922483.4A CN201710922483A CN107620259A CN 107620259 A CN107620259 A CN 107620259A CN 201710922483 A CN201710922483 A CN 201710922483A CN 107620259 A CN107620259 A CN 107620259A
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Abstract
The invention discloses construction protection method for bridge under a kind of high-voltage line, including installation monitoring device to be monitored in real time to high-voltage line；Conductive protection device is installed, for protecting Bridge Erector, the conductive protection device is located at beyond high-voltage line safe distance.Timely early warning is easy to using this method, alarm, take precautions against the generation of security incident, then the protection of Luo Liang mechanisms is got up using the protection canopy of conductive material, the protection canopy and Bridge Erector are respectively connected with earthing or grounding means, section assembling bridge operation height can be limited, ensure the safe distance of operation under crane span structure equipment and operating personnel's super-high voltage, induced-current caused by high-tension bus-bar is effectively flowed into the earth, ensure operating personnel's personal safety, crane span structure equipment runs well, reduce influence of the high pressure thread environment to construction, improve the security of bridge construction operation, reduce construction risk, ensure construction speed.
Description
Technical field
The present invention relates to railway construction engineering construction field, construction protection method for bridge under more particularly to a kind of high-voltage line.
Background technology
China's economy gradually develops, and traffic engineering constantly extends, and needs to face various complicated constructions in building course
Environment, wherein, high-voltage line is worn under bridge formation process is unavoidable, causes normalization of being constructed under high-voltage line, is built a bridge under high-voltage line, especially
It is under such as more than 500kv super-high voltage, although constructing operation interface is located at beyond the safe distance of high-tension bus-bar, but still
It is closer to the distance with high-voltage line, under the influence of super-pressure induced field, induced-current etc., prolonged continuous bridging operation, easily
Construction safety is caused to have a strong impact on, or even triggers security incident, Bridge Erector also lacks effective protector, operating personnel's
Safety is also difficult to effective guarantee, therefore, lacks effective means of defence and causes that construction safety hidden danger is big, and construction cost increases.
The content of the invention
It is an object of the invention to overcome prior art to carry out the safety wind of bridge construction, equipment and personnel under high-voltage line
Danger is big, constructional difficulties, influences construction speed, increases construction cost, lacks the above-mentioned deficiency such as safe means of defence, there is provided a kind of
Construction protection method for bridge under high-voltage line.
To achieve these goals, the invention provides following technical scheme：
Construction protection method for bridge under a kind of high-voltage line, its step include：
A, installation monitoring device is monitored in real time to high-voltage line；
Conductive protection device is installed b, for protecting Bridge Erector, the conductive protection device is located at beyond high-voltage line safe distance,
Monitoring device is installed；
Wherein, the conductive protection device includes protection canopy, and the protection canopy includes support frame and ceiling, support frame as described above and top
Canopy is conductive material, and support frame as described above is used to support the ceiling, and the protection canopy is located above the Luo Liang mechanisms of Bridge Erector,
The protection canopy and Bridge Erector are respectively connected with earthing or grounding means.
Using construction protection method for bridge under a kind of high-voltage line of the present invention, set in the installation monitoring of high-voltage line minimum point
It is standby that high-voltage line is monitored in real time, below captured in real-time high-voltage line and periphery construction dynamic, to close to high-voltage line certain limit
Interior object is monitored, and is easy to timely early warning, alarm, takes precautions against the generation of security incident, is then installed conductive protection device, is adopted
The protection of Luo Liang mechanisms is got up with the protection canopy of conductive material, the protection canopy and Bridge Erector are respectively connected with earthing or grounding means, can
Limit section assembling bridge operation height, it is ensured that the safe distance of operation under crane span structure equipment and operating personnel's super-high voltage, effectively
Induced-current caused by high-tension bus-bar is flowed into the earth, it is ensured that operating personnel's personal safety during subsequent construction, ensure frame
Bridge device runs well, and reduces influence of the high pressure thread environment to construction, improves the security of bridge construction operation, reduces construction
Risk, ensure construction speed.
Preferably, the earthing or grounding means includes electric wire one, pier top embedded bar and multiple grounding body.
Preferably, the supporting leg of the Bridge Erector connects the pier top embedded bar, the protection canopy by the electric wire one
The pier top embedded bar and multiple grounding body are connected by the electric wire one respectively.
Because during construction, supporting leg and the Luo Liang mechanism needs to separate, thus by pier top embedded bar and
Multiple grounding body makes the induced-current on the Bridge Erector and protection canopy flow into the earth respectively, it is ensured that and grounding resistance meets requirement,
Ensure security.
Preferably, the multiple grounding body includes an at least zinc-plated drop bar.
It is further preferred that the depth that the every zinc-plated drop bar enters underground layer is more than or equal to 80cm.
Preferably, the step b comprises the following steps：
B1, support frame as described above and ceiling are set up, the ceiling is connected to above support frame as described above, forms the protection canopy；
B2, the protection canopy lifted to the Luo Liang mechanisms, support frame as described above is welded in the bearing of the Luo Liang mechanisms
On；
B3, connecting earthing device is distinguished to the protection canopy and Bridge Erector；
B4, earth resistance is carried out to the protection canopy and Bridge Erector, grounding resistance meets to require, completes the conductive protection
The installation of device.
Building for protection canopy first is completed on ground, then lifting installation is being carried out, is being advantageous to raising and sets up efficiency, raising is taken
If the security of process, accelerating construction progress, is easy to operating personnel to operate, safety coefficient is higher.
It is further preferred that in step b2, bracing means is set in the link position of support frame as described above and bearing.
It is further preferred that after completing step b4, the electromagnetic induction region that the Bridge Erector enters high-voltage line is constructed.
After the conductive protection device completes earthing test and meets requirement, it can just run the Luo Liang mechanisms and enter high pressure
Construction operation is carried out in the electromagnetic induction region of line.
Preferably, operating personnel's wearing shielding equipment before the electromagnetic induction region of high-voltage line is entered.
I.e. operating personnel is both needed to wearing shielding equipment when installing monitoring device and conductive protection device and carries out operation.
In summary, compared with prior art, the beneficial effects of the invention are as follows：
1st, using construction protection method for bridge under a kind of high-voltage line of the present invention, to close to a range of thing of high-voltage line
Body is monitored, and is easy to timely early warning, alarm, takes precautions against the generation of security incident, conductive protection device is then installed, using conduction
The protection canopy of material gets up the protection of Luo Liang mechanisms, and the protection canopy and Bridge Erector are respectively connected with earthing or grounding means, can limit section
The assembled bridge operation height of section, it is ensured that the safe distance of operation under crane span structure equipment and operating personnel's super-high voltage, effectively by high pressure
Induced-current caused by electric wire flows into the earth, it is ensured that operating personnel's personal safety during subsequent construction, ensures bridging equipment
Run well, reduce influence of the high pressure thread environment to construction, improve the security of bridge construction operation, reduce construction risk,
Ensure construction speed.
2nd, using construction protection method for bridge under a kind of high-voltage line of the present invention, due to during construction, institute
Stating supporting leg and Luo Liang mechanisms needs to separate, therefore makes the Bridge Erector respectively by pier top embedded bar and multiple grounding body and prevent
The induced-current protected on canopy flows into the earth, it is ensured that grounding resistance meets requirement, ensures security.
3rd, using the construction method of construction protection method for bridge under a kind of high-voltage line of the present invention, first completed on ground
Protection canopy is built, and is then carrying out lifting installation, is advantageous to raising and is set up efficiency, accelerating construction progress, is easy to operating personnel
Operation, safety coefficient are higher.
Brief description of the drawings
Fig. 1 is the flow chart of construction protection method for bridge under a kind of high-voltage line of the present invention.
Fig. 2 is a kind of structural representation of conductive protection device of the present invention.
Fig. 3 is the structural side view of protection canopy of the present invention.
Marked in figure：1- support frames, 2- ceilings, 3- Luo Liang mechanisms, 41- electric wires one, 42- electric wires two, 5- pier top pre-buried steels
Muscle, 6- multiple grounding bodies, 7- supporting legs.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.But this should not be interpreted as to this
The scope for inventing above-mentioned theme is only limitted to following embodiment, all to belong to the present invention based on the technology that present invention is realized
Scope.
Embodiment 1
Construction protection method for bridge, such as Fig. 1 under a kind of high-voltage line of the present invention, including：
A, installation monitoring device is monitored in real time to high-voltage line；
Conductive protection device is installed b, for protecting Bridge Erector, the conductive protection device is located at beyond high-voltage line safe distance,
Complete construction protection；
Wherein, as Fig. 2-3, the conductive protection device include protection canopy, the protection canopy includes support frame 1 and ceiling 2, described
Support frame 1 and ceiling 2 are conductive material, and support frame as described above 1 is used to support the ceiling 2, and the protection canopy is located at Bridge Erector
The top of Luo Liang mechanisms 3, the protection canopy and Bridge Erector be respectively connected with earthing or grounding means, the earthing or grounding means include electric wire 1,
Pier top embedded bar 5 and multiple grounding body 6, the supporting leg 7 of the Bridge Erector are pre-buried by the electric wire 1 connection pier top
Reinforcing bar 5, the protection canopy connect the pier top embedded bar 5 and multiple grounding body 6 respectively by the electric wire 1.
If desired for bridge construction is carried out under 500KV super-high voltages, first in the minimum point installation video monitoring system of high-voltage line
System, below captured in real-time high-voltage line and periphery construction dynamic, because the security control distance of 500KV super-high voltages is 8.5m, when having
Any object sends alarm in the range of the 9m of 500KV super-high voltage minimum points.
Then support frame as described above 1 is formed using four coating steel pipes on ground, is formed with four zinc-plated square tubes and color steel tile
The ceiling 2, the ceiling 2 is welded on the top of support frame as described above 1,2 protection canopies are made, by a protection canopy
At lifting to a Luo Liang mechanism 3, the Bridge Erector is located at beyond the electromagnetic induction region of high-voltage line, will each branch
Support 1 is welded on the bearing of a Luo Liang mechanism 3, and welds stiffened panel as bracing means, in the He of support frame as described above 1
Binding post is welded on ceiling 2, is easy to be connected with the binding post on electric wire 2 42, institute is connected to using the electric wire 2 42
State between support frame 1 and ceiling 2, each support frame as described above 1 connects the pier top embedded bar 5 respectively by the electric wire 1
With multiple grounding body 6, the supporting leg 7 of the Bridge Erector connects a pier top embedded bar 5 by the electric wire 1, described
Pier top embedded bar 5 is used as wiring body after being welded by band iron, the multiple grounding body 6 is a zinc-plated drop bar, the plating
The depth that zinc drop bar enters underground layer is equal to 80cm, and the electric wire 1 and electric wire 2 42 use 50mm2Soft copper core cable
Line, each support frame as described above 1 connect a zinc-plated drop bar, then carry out earth resistance, if grounding resistance is unsatisfactory for wanting
Ask, be then further added by connecting zinc-plated drop bar, until meeting to require, after the installation for completing the conductive protection device, be then turned on institute
State Bridge Erector carry out Summarized Account of Bridge Erection Construction, the protection canopy be integrally located at high-voltage line security control distance beyond, with it is described fall beam machine
In the work progress that structure 3 moves, it must not also enter the security control distance of high-voltage line.
Operating personnel is when installing monitoring device and conductive protection device, and wearing shielding is both needed to during subsequent construction
Equipment carries out operation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. construction protection method for bridge under a kind of high-voltage line, it is characterised in that its step includes：
A, installation monitoring device is monitored in real time to high-voltage line；
Conductive protection device is installed b, for protecting Bridge Erector, the conductive protection device is located at beyond high-voltage line safe distance,
Complete construction protection；
Wherein, the conductive protection device includes protection canopy, and the protection canopy includes support frame (1) and ceiling (2), the support
Frame (1) and ceiling (2) are conductive material, and support frame as described above (1) is used to support the ceiling (2), and the protection canopy is located at frame
Above the Luo Liang mechanisms (3) of bridge machine, the protection canopy and Bridge Erector are respectively connected with earthing or grounding means.
2. construction protection method for bridge under a kind of high-voltage line according to claim 1, it is characterised in that the earthing or grounding means
Include electric wire one (41), pier top embedded bar (5) and multiple grounding body (6).
3. construction protection method for bridge under a kind of high-voltage line according to claim 2, it is characterised in that the Bridge Erector
Supporting leg (7) connects the pier top embedded bar (5) by the electric wire one (41), and the protection canopy passes through the electric wire one (41)
The pier top embedded bar (5) and multiple grounding body (6) are connected respectively.
4. construction protection method for bridge under a kind of high-voltage line according to claim 2, it is characterised in that the multiple grounding
Body (6) includes an at least zinc-plated drop bar.
5. construction protection method for bridge under a kind of high-voltage line according to claim 4, it is characterised in that every described zinc-plated
The depth that drop bar enters underground layer is more than or equal to 80cm.
6. according to construction protection method for bridge under a kind of any described high-voltage lines of claim 1-5, it is characterised in that the step
Rapid b comprises the following steps：
B1, support frame as described above (1) and ceiling (2) are set up, the ceiling (2) is connected to above support frame as described above (1), form institute
State protection canopy；
B2, the protection canopy lifted to Luo Liang mechanisms (3) place, support frame as described above (1) is welded in the Luo Liang mechanisms
(3) on bearing；
B3, connecting earthing device is distinguished to the protection canopy and Bridge Erector；
B4, earth resistance is carried out to the protection canopy and Bridge Erector, grounding resistance meets to require, completes the conductive protection
The installation of device.
7. the construction method of construction protection method for bridge under a kind of high-voltage line according to claim 6, it is characterised in that
In step b2, bracing means is set in the link position of support frame as described above (1) and bearing.
8. the construction method of construction protection method for bridge under a kind of high-voltage line according to claim 6, it is characterised in that complete
Into after step b4, the electromagnetic induction region that the Bridge Erector enters high-voltage line is constructed.
9. according to construction protection method for bridge under a kind of any described high-voltage lines of claim 1-5, it is characterised in that operation people
Member's wearing shielding equipment before the electromagnetic induction region of high-voltage line is entered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710922483.4A CN107620259A (en) | 2017-09-30 | 2017-09-30 | Construction protection method for bridge under a kind of high-voltage line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710922483.4A CN107620259A (en) | 2017-09-30 | 2017-09-30 | Construction protection method for bridge under a kind of high-voltage line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107620259A true CN107620259A (en) | 2018-01-23 |
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ID=61091090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710922483.4A Pending CN107620259A (en) | 2017-09-30 | 2017-09-30 | Construction protection method for bridge under a kind of high-voltage line |
Country Status (1)
| Country | Link |
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| CN (1) | CN107620259A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979102A (en) * | 2018-08-08 | 2018-12-11 | 广东永和建设集团有限公司 | One kind closing on high-voltage line safe construction method |
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| JP2004257932A (en) * | 2003-02-27 | 2004-09-16 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber type displacement gauge |
| CN101082203A (en) * | 2007-03-23 | 2007-12-05 | 中铁大桥局集团第二工程有限公司 | Construction protection method for bridge near top side of electrified railroad high voltage wire |
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| 王希亮: "110kV高压线下跨路钢箱梁的吊装施工技术", 《机械管理开发》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979102A (en) * | 2018-08-08 | 2018-12-11 | 广东永和建设集团有限公司 | One kind closing on high-voltage line safe construction method |
| CN108979102B (en) * | 2018-08-08 | 2020-08-28 | 广东永和建设集团有限公司 | Safe construction method for high-voltage line |
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Application publication date: 20180123 |